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PROFESSOR'S RESEARCH #178/202
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178/202
HOLOHOLO
 
SWSH01: Sword & Shield Base Set2020
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Graded Cap$995
PSA 10$38
Raw NM$2
$38Pop 19
SWSH01: Sword & Shield Base Set2020
Price & Volume History
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Market
Last Sale
$34
194 days ago
Price Estimate
$38
MODELED
40% off ATH$63 · FEB '21
On eBay · Lowest PSA 10 Buy It Now
See listings ↗
Price Confidence:Modeled · Set
Sales
Sales
2026-04-26$34
2026-01-26$25
2026-01-25$17
2025-05-25$20
2024-10-21$5
Sales
10 sales · Jan 23 2021 – Apr 26 2026
2026-04-26$34eBay
2026-01-26$25eBay
2026-01-25$17eBay
2025-05-25$20eBay
2024-10-21$5eBay
2023-09-11$10eBay
2023-05-30$20eBay
2022-10-27$12eBay
2021-03-10$59eBay
2021-01-23$65eBay
See live PSA 10 listings on eBay ↗
Grading
Snapshot
Key Metrics · Grading Activity
Percentile vs.
MetricValueSetEraAll
Value / CopyPSA 10 price divided by how many PSA 10 copies exist. Roughly: how much value rides on each perfect copy.$233——
Gem RateOf every copy PSA has ever graded, the share that came back a perfect 10.35.8%60——
Gem Premium (10:9)How much more a PSA 10 costs than a PSA 9 of this card. 2.5× means the perfect copy sells for 2.5 times the near-perfect one.2.9×35——
Vs ExpectedThis card's price vs what you'd expect for a card with its PSA 10 population in its era. 9× means the market pays nine times what rarity alone explains — collector demand. Below 1× means it's cheaper than its scarcity suggests.0.2×28——
PSA10
19
PSA
Total: 53
Gem Rate: 35.8%
Cumulative Grading
53graded19PSA 10Apr 26Nov 26
All Grades
53 total graded · click to change view
▍ PSA
▍ Raw
▍ Other Grades
Related Cards
▍ Variants3
REVERSE HOLO
178/202
Professor's Research
PSA 10$200
NM$0
STAFF
178
Professor's Research
PSA 10—
NM—
PROMO
178
Professor's Research
PSA 10—
NM—
eBay Listings
See live PSA 10 listings on eBay ↗